KR100271577B1 - Printer - Google Patents

Abstract

In limiting the rotation of the printing endless band 7, the excessive rotational force is not applied to the printing endless band 7 itself to avoid damage such as abrasion or cracking, and the printing endless band 7 It is an object of the present invention to provide a printing machine in which the selection wheel 5 is idling when the belt is excessively rotated, so that the printing endless band 7 is not so loaded. When the member which restricts the rotation of the selection wheel 5 is a movable type and an excessive force is applied to the selection wheel 5 to the endless band 7 for printing, the movable stopper member 14 is moved. The stopper acquisition member 15 which abuts on the elastic part 14B of the movable stopper member 14 is provided, and the drive | dye part 7E for driving and elasticity which follow the movement of the printing endless band 7 are provided. The movable stopper member 14 is made movable by engagement of the part 14B.

Description

Printing machine {PRINTER}

In general, in the printing machine of the hand labeler, the selection wheel is arranged at one end of the printing machine frame and at the same time, the printing receiving part is provided at the other end, and between the selection wheel and the printing argument part, the printing character and the title character are placed on the outer circumferential surface. The formed flexible endless band made of rubber or synthetic resin is wound on the outside. Here, by rotating the selection wheel, the printing endless band is rotated, the desired printing characters are placed on the outer surface of the printing unit, and the printing is made possible, and ink is applied to the printing characters by an ink roller or the like. It allows you to stamp arguments on labels, etc.

However, in the endless band for printing, a print character is formed in the outer half, and a print character is formed in the outer half, and the print character corresponding to the heading character located at the position that can be found in the title window installed in the print machine frame. Is set to the argument argument.

Therefore, the predetermined print character can be positioned on the print take-up stand by rotating the selection wheel by the print selection axis while viewing the print title.

By the way, when the printing endless band is rotated by the operation of the printing selection operation shaft, if the printing endless band is rotated more than a predetermined rotation range, the heading character rotates to the position of the printing argument band and the Ink may be applied to the title text by an ink roller, so that the title text is contaminated and the title text becomes difficult to see when selecting a predetermined print character while viewing the title text through the title window.

Contamination prevention (ink application avoidance means) of such a heading is proposed variously. For example, in the "inbelt structure" according to Japanese Patent Application No. 62-33080, a protrusion is provided on the turntable to rotate the endless band for printing, and at the same time the rotation range of the endless band for printing is provided. A stopper is provided in the vicinity, so that the projecting piece abuts on the stopper, so that the rotary disk cannot rotate outside the predetermined area.

In this device, however, the projecting piece interferes with the heading letter, and when the projecting piece is in contact with the stopper, if the turntable is rotated with excessive force, the printing endless band is stretched, resulting in poor printing or peeling. There is.

In the "factor device" of Japanese Patent Laid-Open No. 6-155878, a convex portion is formed on the outer circumferential surface side of the printing endless band so that it can be caught by the stopper and engages with the concave portion provided on the outer circumference of the selection wheel. When the inclined surface is formed on the top surface of the driving projection to be used, and the selection wheel is forcibly rotated when the printing endless band reaches the limit position, the printing endless band slips. However, in this apparatus, there is a problem that damage such as abrasion or cracking occurs on the inclined surface of the printing endless band due to slip when the printing endless band is attempted to rotate with an excessive force. Moreover, since the convex part is formed in the outer peripheral surface of the printing endless band, there also exists a problem that the number of printing characters which can be provided in a printing endless band reduces.

Furthermore, in the "contamination prevention device for the heading character in the printing machine" according to Japanese Patent Application Laid-Open No. 6-71146, the printing end is formed by the thick printing section formed on the outer circumferential surface of the printing endless band abutting the edge of the indicator. The range of rotation of the lease band is limited.

However, also in this apparatus, when rotated by an excessive force, there exists a problem of damage of an indicator, damage, such as abrasion and a crack of an endless band for printing. Moreover, there is a problem that the endless band for printing penetrates under the indicator and passes through.

Moreover, in the "factoring apparatus" of Unexamined-Japanese-Patent No. 4-34951, rotation of the printing endless band is restrict | limited by the engagement of the saw tooth formed in the printing endless band and the stopper shoulder.

However, also in this apparatus, when it rotates with an excessive force, there exists a problem of the extension of a printing endless band, or damage, such as abrasion and a crack.

In such a structure, in order to prevent the contamination of the heading character, when the rotation of the printing endless band is to be restricted in a predetermined region, it is noted that the external force acts directly or indirectly on the printing endless band. It is difficult to avoid, and there are problems such as damage and elongation, and furthermore, the protruding member cannot ride over the stopper and achieve its intended purpose.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and provides a printing machine which can prevent the contamination by preventing the heading character from being located on the printing receiving portion, that is, not facing the ink roller, in the printing endless band. It aims to do it.

Another object of the present invention is to provide a printing machine in which the rotation of the printing endless band does not exert excessive rotational force on the printing endless band itself so that damage such as abrasion or cracking can be avoided. It is done.

Another object of the present invention is to provide a printing machine capable of minimizing the number of printing characters even when a projection member or the like is formed to limit the rotation of the printing endless band.

Another object of the present invention is to provide a printing machine which makes the selection wheel idle while not limiting the rotation of the printing endless band, while at the same time, idling the selection wheel. It is done.

Moreover, an object of this invention is to provide the printing machine which can adjust the tension (tension degree) of the printing endless band within a predetermined range.

TECHNICAL FIELD The present invention relates to a printing machine, and more particularly, to a title character contamination prevention device of a printing machine mounted on a portable label printing device (handhelveler) or the like.

1 is a cross-sectional view of a printing machine according to a first embodiment of the present invention;

2 is a cross-sectional view taken along the line II-II of FIG. 1;

3 is a cross-sectional view showing a rotation stopping state when the printing endless band of the printing machine shown in FIG. 1 is rotated;

4 is a sectional view showing an idle state of a selection wheel;

5 is a cross-sectional view of a printing machine according to a second embodiment of the present invention;

6 is a cross-sectional view taken along line VI-VI of FIG. 5;

7 is a side view of the endless band for printing in the second embodiment;

8 is a cross-sectional view showing a rotation stop state and idle state of the endless band for printing;

9 is a sectional view of the printing machine of the third embodiment of the present invention;

10 is a cross-sectional view taken along the line II-II of FIG. 9;

11 is a side view of the adjuster,

12 is a partially enlarged cross-sectional view of the notch portion of the printing machine frame and the adjuster portion;

FIG. 13 is a cross-sectional view showing a rotation stopping state when the printing endless band is rotated in the printing machine of FIG. 9; FIG.

14 is a sectional view showing an idle state of a selection wheel;

The first embodiment of the present invention is to make a member (movable stopper member) restricting the rotation of the selection wheel a movable type having an elastic portion, and this movable when an excessive force is applied to the selection wheel or the endless band for printing. The first embodiment of the present invention is directed to moving the stopper member and causing the printing endless band to be partially released from being engaged with the selection wheel to generate relaxation and to idle the selection wheel. It has an endless band for printing, which is wound outwardly between the selection wheel and the printing element, and has a plurality of printing letters and title letters on the outer circumferential surface. And an intercepting boss portion which is installed between the selection wheel and the printing argument portion and engaged with the selection wheel at one end thereof. An inner circumferential surface of the endless band for printing having a movable stopper member provided with an elastic portion having a locking piece at the other end, and a stopper receiving member contacting the elastic portion of the movable stopper member to regulate the movement of the movable stopper member. In the movable stopper member is provided with a driving projection that can be engaged with the engaging piece of the elastic portion, and the movable stopper member by engaging the driving projection and the engaging piece in accordance with the movement of the printing endless band. By moving the, it is characterized in that the engagement of the selection wheel and the theft boss portion can be separated.

By providing a stopper guide for guiding the movable stopper member in the movable direction, the movement of the movable stopper member can be stabilized.

Since the elastic portion has a bifurcated locking spring, the bifurcating bipolar locking spring can be elastically deformed in the horizontal direction in a vertical motion of the movable stopper member, for driving the endless band for printing. It is possible to reinforce the engagement between the protrusion and the elastic portion, and to smoothly move the movable stopper member.

The stopper receiving member has a receiving part inclined surface that receives the elastic part, so that when the movable stopper member moves, the elastic part is elastically deformed along the inclined surface of the printing part so that the driving protrusion of the printing endless band and the elastic part hang. The fit can be further enhanced, and the elastic stopper of the movable stopper member can be smoothly performed.

The printing endless band has a printing blank portion on the outer circumferential surface thereof, and the inner circumferential surface of the heading letter adjacent to the rotation direction side of the printing blank portion may be a flat portion.

That is, the inner circumferential surface of the heading letter adjacent to the printing blank portion in the rotational direction side is not formed so as to form a projection that can be engaged with the selection wheel, thereby avoiding engagement between the selection wheel and the printing endless band, and selecting The wheels can be made easier to idle.

The second embodiment of the present invention has a printing endless band wound outward between the selection wheel and the printing argument portion and formed with a plurality of printing letters and heading letters on the outer circumferential surface, and any printing factor in the printing endless band. A printing machine for selecting a character, comprising: a stopper member provided between the selection wheel and the printing receiving portion, a driving projection provided on an inner circumferential surface of the printing endless band and engaging with the stopper member; By engaging the driving protrusion and the stopper member according to the movement of the dragon endless band, the printing endless band may be relaxed to allow the selection wheel to idle.

In the printing machine according to the present invention, in the heading character contamination prevention device, by forming the theft boss portion and the elastic portion in the movable stopper member, the theft boss portion is engaged with the selection wheel and at the same time the elastic portion is elastically deformed, thereby printing the character of the endless band for printing Theft (the proper set state of the argument argument to the argument argument for each character of the argument character and the distinction of the set state) can be obtained in the selection operation of. Therefore, the print letter and the title letter of the print endless band can be arbitrarily selected by rotating the selection endless band by rotating the selection wheel, but the title letter is likely to contact (contact) the ink roller. Immediately before reaching the printing receiving portion, the driving protrusion of the printing endless band engages with the elastic portion of the movable stopper member, thereby providing a sense of resistance (resistance) such as stopping the rotation once. If the selection wheel is to be rotated further beyond this resistance action, the elastic portion elastically deforms, and the movable stopper member itself moves slightly toward the printing receiving portion.

As a result, the rotary slip contact resistance of the movable stopper member and the selection wheel of the movable stopper is lower than the normal printing selection, and at the engaging portion of the printing endless band and the selection wheel, the driving projection and the elastic portion As a result, the endless band for printing to the engaging portion of the slack relaxes and the engagement with the selection wheel is released, and the selection wheel idles.

Therefore, the heading letter is not rotated to the rotational area of the ink roller, so that the contamination can be prevented, and the excessive force to rotate the selection wheel further increases the endless band for printing. It acts to cause idling between the cutting boss portion of the movable stopper member and the selection wheel, rather than being caught by the driving protrusion or the elastic portion of the movable stopper member, and does not damage the endless band for printing. .

Furthermore, since the driving projection is provided on the inner circumferential surface of the printing endless band, and it can be engaged with the elastic portion of the movable stopper member, there is no reduction in the number of print and title characters on the outer circumferential surface of the printing endless band. .

In the second embodiment of the present invention, when the printing endless band is engaged with the stopper member and its rotation is prevented, relaxation occurs in the printing endless band and between the selection wheel and the printing endless band. Even if it is in the normal state or contact, the rotation action from the selection wheel does not act on the endless band for printing, the selection wheel rotates idle, the endless band for printing moves, and the heading character moves to the printing substrate. There is no chance that headings will be contaminated by contact with the ink rollers.

The third embodiment of the present invention is characterized in that the inner circumferential side of the printing endless band is provided with a cam member which can be foldably rotated on the inner circumferential surface of the printing endless band and whose rotational movement position is adjustable. do. In this case, it is possible to adjust the tension of the printing endless band by changing the abutment degree of the cam member and the printing endless band by rotating the cam member.

1 and 2, in the printing machine frame 3 of the printing machine 1, a plurality of selection wheels 5 which are selectively rotated by the operation shaft 4 for printing selection are provided at one end thereof. The other end is provided with a T-shaped printing take-up part 6 in cross section extending in parallel with the operation shaft 4 for printing selection, between each selection wheel 5 and the printing take-up part 6. The endless band 7 for printing is respectively wound by the outer side with predetermined tension. In other words, a plurality of rows of printing endless bands 7 are wound from the outside between the selection wheel 5 and the printing take-up unit 6.

In the printing machine frame 3, a title window 8 is formed in an opening in a cross section facing the selection wheel 5, and an ink roller opposing opening portion is formed in a cross section in which the printing receiving stand 6 is provided. 9) is formed in the opening, and the ink roller R is made to roll in the ink roller opposing opening 9 so as to be in contact with the printing endless band 7.

The operating shaft 4 selects the endless band 7 for printing in any row by moving it in its axial direction (positioning), and rotates the selection wheel 5 in the positioned row, It is to select a specific print character in the endless band 7. The operating shaft is mounted so as to be movable in the axial direction with respect to the printing machine frame 3 and to rotate in the circumferential direction, and a plurality of positioning grooves 4A are formed on the outer circumferential surface at equal intervals in the axial direction, The rotary pin 11 protrudes in the vicinity of the tip.

On the other hand, the printing machine frame 3 is formed with a vertical hole 3A for accommodating the positioning steel ball 12, and the positioning steel ball 12 accommodated in the vertical hole 3A is a positioning spring 13. Is pressed in the direction of the positioning groove 4A, and the positioning steel ball 12 is engaged with one of the positioning grooves 4A.

However, when the operation shaft 4 is moved in the axial direction, the positioning steel balls 12 are engaged with the positioning grooves 4A sequentially, and the rotary pins 11 of the selection wheels 5 sequentially correspond to each other. It moves to a position and engages with the inner peripheral engaging groove 5A formed in the inner peripheral surface of the selection wheel 5. That is, the selection wheel 5 of a desired row can be positioned by the movement of the operating shaft 4 in the axial direction.

The printing machine frame 3 is further provided with an indicator 10 arranged to be movable in a direction parallel to the axis of the operation shaft 4 along the title window 8, and the indicator 10 is provided with an operation shaft 4. Only the relative rotational movement relative to the cylinder is possible to move integrally with the operation shaft 4 in the axial direction. The indicator 10 has a guide portion 10A protruding in the title window portion 8, and the guide portion 10A is a row of the selection wheel 5 of the desired row in which the guide portion 10A is positioned by the operation shaft 4. It is intended to guide.

The printing endless band 7 is formed by dividing a predetermined number of printing characters 7A and title characters 7B into respective regions on its outer peripheral surface. That is, a plurality of print letters 7A are formed in the outer circumferential half of the printing endless band 7, and a plurality of title letters 7B are formed in the other outer circumferential half. A printing blank portion 7C is formed in the boundary region of the printing character group and the heading character group, respectively, and as described later, both ends of the moving range of the printing endless band 7 The printing blank portion 7C faces the title window portion 8 and the ink roller opposing opening portion 9.

In the inner circumferential surface of the printing endless band 7, the portion corresponding to the printing character 7A is flattened, and the portion corresponding to the heading character 7B is provided with the outer circumferential engagement groove 5B of the selection wheel 5. The low driving protrusion 7D and the high driving protrusion 7E that are respectively engageable with each other are formed.

The high driving projection 7E is provided at a portion corresponding to the heading letter 7B at a substantially center position of the plurality of heading letters 7B, the number of which is the print letter 7A and the heading letter 7B. The inner circumferential surface of the printing endless band 7 can be arbitrarily set over a predetermined area depending on the number of "

Then, when the selection wheel 5 is rotated, the low driving protrusion 7D and the high driving protrusion 7E are engaged with the outer circumferential engaging groove 5B of the selection wheel 5, and the printing endless band ( 7) can be rotated so that any printed characters 7A can be brought into contact with the ink roller R at the ink roller opposing opening 9.

In the printing machine frame 3, the selection wheel 5 and the printing take-up stand 6 between the selection wheel 5 and the printing take-up stand 6 are disposed inside the endless band 7 for printing. A plurality of rows of movable stopper members 14 corresponding to each selection wheel 5 are arranged in between.

That is, the stopper guide 3B is protrudingly installed in the printing machine frame 3, and the guide window 14C formed in the center part of the movable stopper member 14 is fitted to this stopper guide 3B, The movable stopper member 14 is movable in a direction in which the select wheel 5 is approached or separated.

One end of the movable stopper member 14 is provided with a pair of theft boss portions 14A engaged with the outer circumferential engaging groove 5B of the selection wheel 5, and an elastic portion 14B is provided at the other end thereof. It is.

The elastic portion 14B has a two-parted latching spring portion 14D, and a locking piece 14E protruding outward is formed at the distal end of the locking spring portion 14D, and the locking piece 14E is provided. The distal end face of the φ) is an inclined surface 14F on which the distal end side extends. In addition, a stopper take-up member 15 is arranged between the movable stopper member 14 and the print take-up base 6. As shown in Fig. 2, the stopper take-up member 15 is formed integrally with the print machine frame 3, and the engaging piece 14E is disposed on the opposite surface of the stopper take-up member 15 with the movable stopper member 14. 15 A of intake part side inclination surfaces which contact the inclined surface 14F of () are formed, and the movement of the movable stopper member 14 is regulated by abutment of the inclined surface 14F and 15 A of intake part side inclination surfaces.

Then, in the normal selectable state, the movable stopper member 14 is pressed in the direction of the selection wheel 5 by the action of the elastic portion 14B and between the guide window 14C and the stopper guide portion 3B. An upper gap S1 is formed in the lower portion of the movable stopper member 14 to enable downward movement and return movement.

The printing machine frame 3 is further provided with pressing frames 3C and 3D for preventing the printing endless band 7 from shifting outwardly between the selection wheel 5 and the printing receiving unit 6. It is.

In the printing machine 1 of such a structure, in a normal printing selection state, as shown in FIG. 1 and FIG. 2, arbitrary columns are positioned by moving the operation shaft 4 to a biaxial direction, and Rotating it in any direction in the forward and reverse directions, the printing endless band 7 is rotated through the selection wheel 5 so that the desired heading 7B of the printing endless band 7 is displayed in the title window ( The desired printing character 7A can be selected by stopping the rotation of the operating shaft 4 at the position shown from 8).

In this selected state, the printing characters 7A corresponding to the selected title characters 7B are set and exposed in the printing argument counter portion 6 in the ink roller opposing opening 9 and are exposed by the rolling of the ink roller R. FIG. Ink can be applied to the printing letter 7A, and the printing machine 1 can be printed by stamping the entire printing machine 1 on a label by an operation such as a hand lever (not shown).

Fig. 3 is a cross-sectional view showing the rotation stopping state when the printing endless band 7 is rotated in the clockwise direction in the drawing. First, the selection wheel 5 is rotated by operating the operation shaft 4 in a predetermined row. When the printing endless band 7 is rotated in a clockwise direction by a predetermined amount, the printing blank portion 7C faces the title window 8 and the ink roller opposing opening 9 and at the same time the printing endless band ( The high driving projection 7E of 7) is engaged with the engaging piece 14E (right side in the drawing) of the elastic portion 14B in the movable stopper member 14.

Therefore, even if the selection wheel 5 is to be rotated any longer, the high driving projection 7E and the engaging piece 14E are engaged so that the rotation of the selection wheel 5 is prevented and the printing endless band 7 It is possible to avoid the position of the heading 7B at the ink roller opposing opening 9, and to prevent the heading 7B from being contaminated by the ink roller R. As shown in FIG.

4 is a cross-sectional view showing the idle state of the selection wheel 5. In the above-described rotation stopping state, if the selection wheel 5 is to be rotated further by force, the outer peripheral groove of the selection wheel 5 is engaged. 5B escapes from the theft boss portion 14A of the movable stopper member 14 and rests thereon, resulting in a state as shown.

That is, the movable stopper member 14 is guided to the stopper guide portion 3B and moves downward in the drawing, and a lower gap S2 is formed between the guide long window 14C and the stopper guide portion 3B. At the same time, the inclined surface 14F of the elastic portion slides on the upper surface of the inclining portion side inclined surface 15A, and the left and right pairs of the locking spring portions 14D of the elastic portion 14B spread outward, so that the catching piece 14E and the printing end The engagement with the high driving projection 7E of the lease band 7 is further solidified.

In this state, relaxation occurs in the printing endless band 7 between the printing blank portion 7C portion and the engaging piece 14E portion on the upper side, and the low driving projection portion 7D is the selection wheel 5. The selection wheel 5 idles away from the outer circumferential engaging groove 5B.

Moreover, the engaging frame 14E and the high driving projection 7E are located in front of the rotation direction of the selection wheel 5 or the printing endless band 7 and at the same time the pressing frame 3C or 3D. Presses the endless band 7 for printing and suppresses it from spreading outward. Therefore, there is sufficient relaxation between the selection wheel 5 and the endless band 7 for printing, and idle rotation of the selection wheel 5 occurs. You can be sure.

Therefore, even if excessive external force is applied, the selection wheel 5 can be idled. In addition, although the rotation of the selection wheel 5 itself is caught by the theft boss portion 14A portion of the movable stopper member 14 rather than the endless band 7 for printing, the movable stopper member 14 has an endless band for printing. As it is harder than 7), the wear and tear does not interfere with the choice of factor.

Here, when the selection wheel 5 is rotated to the opposite side (counterclockwise), the engagement between the outer circumferential engagement groove 5B and the theft boss portion 14A is realized again and the elastic force of the movable stopper member 14 is achieved. By this, the movable stopper member 14 returns to the original position shown in FIG.

5 and 6 are cross-sectional views of the printing machine 20 of the two-row printing type according to the second embodiment of the present invention, and FIG. 6 is a cross-sectional view of the VI-VI line of FIG. 5, wherein the printing machine 20 has substantially the same structure. The printing machine 21 is combined into two rows. In addition, in the figure, the same code | symbol is attached | subjected about the part same as the printing machine 1, the detailed description is abbreviate | omitted, and only the structure different from the printing machine 1 is demonstrated.

By forming the first pressing frame 23A and the second pressing frame 23B of the printing machine frame 23 of the printing machine 20 in a substantially symmetrical shape and providing the guide plate 24 at the center thereof, The movement of the dragon endless band 7 is made smooth.

In addition, a sleeve 25 is rotatably mounted on the printing machine frame 23 around its axis line, and each selection wheel 5 is axially supported on the sleeve 25, and at the same time, the operation shaft 4 in the sleeve 25. ) Is inserted. An axial slit 25A (FIG. 6) is formed in the sleeve 25, and a rotary pin 11 implanted in the operation shaft 4 is inserted into the axial slit 25A, and the rotary pin ( The tip of 11 is engaged with the inner circumferential engagement groove 5A of the selected selection wheel 5.

On the other hand, the operating shaft 4 is equipped with a cavity rotation preventing rod 26 that allows rotation of only the selected selection wheel 5. The cavity anti-rotation rod 26 is mounted on the operation shaft such that only a relative rotational movement is possible with respect to the operation shaft 4 at the same time in parallel with the operation shaft 4, and in the axial direction with respect to the printing machine frame 23 only. It is movably mounted and is further engaged with one of the outer engaging grooves 5B of each selection wheel 5. In addition, the cavity rotation prevention section 26 is formed with a notch 26A for allowing rotation of the selection wheel 5 in which the rotary pin 11 is engaged at a position corresponding to the rotary pin 11.

Therefore, only the selection wheel 5 of a particular row positioned by the operating shaft 4 is rotatable, and the other selection wheel 5 engages the anti-rotation rod 26 with its outer peripheral engaging groove 5B. Therefore, at the time of rotation of the selection wheel 5 of the specific row, the selection wheel 5 adjacent to it is prevented from being co-rotated, and the printing endless other than the printing endless band 7 that is selected and operated. The band never moves.

FIG. 7 is a side view of the printing endless band 7, in which two lower driving projections 7D are formed on the inner circumferential surface of the printing endless band 7 than in the printing machine 1 (FIG. 1). Is reducing.

That is, in the rotational direction forward of the printing endless band 7, the inner circumferential surface of the heading letter 7B adjacent to the printing blank portion 7C does not form a low driving projection 7D, but the flat portion 7F. Doing.

Although the number of the flat parts 7F is a pair (two) in the inner peripheral surface of the printing endless band 7 in the example of illustration, the printing endless band 7 by the selection wheel 5 is shown. If rotation driving is possible, two pairs (four) may be made on the inner circumferential surface of the printing endless band 7 so that two flat portions 7F are adjacent to each other, so that idling can be more easily generated.

Also in the printing machine 20 of the two-row printing type having such a configuration, the ink roller R of the heading letter 7B does not damage the endless band 7 for printing, as it works just as shown in FIG. Can be prevented by contamination.

That is, as shown in FIG. 8, for example, in the part of the printing machine 21 on the right side, the high driving protrusion 7E of the printing endless band 7 is rotated by rotating the selection wheel 5 clockwise. When engaged with the engaging piece 14E of the movable stopper member 14, further rotation of the selection wheel 5 is inhibited (rotation stopping state).

By the way, in the printing machine 21 part on the right side of FIG. 8, when the selection wheel 5 is rotated clockwise and tries to rotate further clockwise from the rotation stop state, the selection wheel 5 is a moderation boss part 14A. It sits on the surface of the selection wheel 5 and enters an idle state on the contrary with the inner circumferential surface including the flat portion 7F (without driving protrusion) of the endless band 7 for printing. That is, as is apparent from the drawing, the printing endless band 7 idles with respect to the selection wheel 5 in idle state.

In detail, in the drawing of the printing blank portion 7C located in the title window portion 8, the inner peripheral surface of the right-sided heading character 7B does not have a low driving protrusion 7D and is a flat portion 7F. The engagement between the wheel 5 and the printing endless band 7 is easy to be released, the relaxation is likely to occur in the printing endless band 7, and the transition to the idle state can be easily performed.

The rest of the operations are the same as in the first embodiment, and thus the description thereof will be omitted.

Furthermore, also in the printing machine according to the first embodiment shown in Figs. 1 to 4, as in the second embodiment described above, the relaxation of the endless band 7 for printing is likely to occur and the selection wheel 5 It can also be comprised so that it may move to this idling state easily.

Moreover, when the diameter of the selection wheel 5 according to the first embodiment is smaller than that of the selection wheel of the second embodiment, the height of the low driving projection 7D at a position corresponding to the flat portion 7F is determined in a predetermined range. In this case, the endless band 7 for printing may be easily released, and the selection wheel 5 may be easily moved to its idle state.

Furthermore, when the selection wheel 5 is larger than the second embodiment (Fig. 5), the flat portion 7F formed on the inner circumferential surface of the printing endless band 7 is left and right with respect to the printing blank portion 7C. If it is 2 characters, it makes idling easily.

9 and 10 show a third embodiment of the present invention, in which the printing is performed inside the printing endless band 7 between the stopper receiving member 15 and the printing receiving portion 6 at the same time. The endless adjustment device 30 of the endless band is arranged. The installation adjustment device 30 has an adjuster 31 (cam member), and the adjuster 31 has an elliptical cross-section main body portion 31A and a cam adjustment rotating shaft as shown in FIG. 31B, the adjustment arm 31C, and the engaging projection 31D are formed integrally.

That is, the cam adjustment rotation movement shaft 31B is provided in the both end surfaces of 31 A of elliptical cross-section main body parts, This cam adjustment rotation movement shaft 31B is axially supported by the printing machine frame 3, and the elliptical cross-section main body ( 31A) is rotatable. The outer circumferential portion of the elliptical cross-section main body 31A is foldable on the inner circumferential surface of the printing endless band 7.

Moreover, the adjustment arm 31C extended in the direction orthogonal to the cam adjustment rotation movement shaft 31B is provided in the one end surface of 31 A of elliptical cross-section main body parts, and a printing machine frame ( The engaging projection 31D facing 3) is provided.

On the other hand, in the printing machine frame 3, as shown in FIG. 12, in the surface perpendicular | vertical to the ground, the cam adjustment groove 32 extended in the radial direction which the engagement protrusion 31D can engage is formed. . Other points are the same as those shown in FIGS. 1 and 2.

For example, in the assembly process of the printing machine in a factory, the elliptical cross-section main body portion 31A is rotated around the cam adjustment rotational movement shaft 31B, and the engaging projection 31D of the adjustment arm 31C is rotated. Is engaged with any cam adjustment groove 32 of the printing machine frame 3, so that the posture or relative position of the elliptical cross-section main body portion 31A with respect to the printing endless band 7 can be adjusted.

For example, as shown in FIG. 9, when the elliptical cross-section main body portion 31A is positioned as holding in the endless band 7 for printing, the unit elliptic body portion 31A is endless band 7 for printing. Because of the relatively strong contact with the inner circumferential surface of the c), the tension of the endless band 7 for printing can be increased.

Alternatively, when the elliptical cross-section main body portion 31A is rotated in a posture as shown in Fig. 13 or 14, the adjuster 31 does not contact the inner circumferential surface of the endless band 7 for printing. The tension of the lease band 7 can be reduced.

Thus, by adjusting the rotational movement angle of the adjuster 31, the tension of the printing endless band 7 can be adjusted to ensure proper rotation, and at the same time as the idle state as shown in FIG. Therefore, the idle action of the loose end piece of the printing endless band 7 and the selection wheel 5 related to this loose end piece can be made to a desired degree.

Furthermore, by adjusting the set angle position of the adjuster 31 in accordance with the elongation or relaxation of the printing endless band 7 accompanying the use of the printing machine, the tension of the printing endless band 7 can be readjusted. have.

As described above, according to the present invention, a movable stopper member having a theft boss portion and an elastic portion and a stopper receiving member for contacting the elastic portion to regulate the movement of the movable stopper member are provided so that the selection wheel can rise and idle. Since it is possible to implement, the contamination of the printing endless band by the ink roller can be prevented and the burden on the printing endless band 7 can be reduced.

Further, when the rotation of the selection wheel is further stopped, the outer circumferential surface of the selection wheel and the inner circumferential surface of the printing endless band are rotated in half and idle, so there is no load due to contact resistance between both surfaces.

Furthermore, in the case where the mounting adjustment device is provided in the printing endless band, the length setting of the printing endless band can be easily adjusted by rotating the adjuster within a predetermined range.

Claims (15)

It has an endless band for printing, which is wound outwards between the selection wheel and the printing element, and has a plurality of printing letters and heading letters formed on the outer circumferential surface thereof. A movable stopper member is provided between the selection wheel and the print taking part and has a sectional boss portion engaged with the selection wheel at one end thereof and an elastic portion having a locking piece at the other end thereof. A stopper receiving member which abuts against the elastic part and regulates the movement of the movable stopper member, and a driving protrusion is provided on an inner circumferential surface of the endless band for printing to engage with the engaging piece of the elastic part in the movable stopper member; By engaging the driving projection and the engaging piece in accordance with the movement of the printing endless band And the movable stopper member is moved to disengage the engagement between the selection wheel and the theft boss portion. The printing machine according to claim 1, wherein a stopper guide for guiding the movable stopper member in the movable direction is provided. 2. The printing machine according to claim 1, wherein the elastic portion has a bifurcating locking spring portion. The printing machine according to claim 1, wherein the stopper acquisition member has an inclined surface that receives the elastic portion. The printing machine according to claim 1, wherein a driving protrusion is formed at a portion corresponding to the heading character on the inner circumferential surface of the printing endless band, and a portion corresponding to the printing character is flat. The printing machine according to claim 1, wherein a printing blank portion is formed on an outer circumferential surface of the printing endless band, and an inner circumferential surface of the heading character adjacent to the rotational direction side of the printing blank portion is a flat portion. The cam member according to claim 1, wherein a cam member is provided on the inner circumferential side of the printing endless band so as to be foldable on the inner circumferential surface of the printing endless band, and the adjustable cam position is adjustable. Printing machine. 8. The printing machine according to claim 7, wherein the cam member has an adjustment arm perpendicular to the cam adjustment rotation axis of the cam. 8. The printing machine according to claim 7, wherein the printing machine frame provided with the selection wheel and the printing receiving portion is provided with an adjusting groove for adjusting the rotational movement position of the cam member. 8. A printing machine according to claim 7, wherein the cam member is elliptical in cross section. It has an endless band for printing, which is wound outwardly between the selection wheel and the printing element, and has a plurality of printing letters and title letters on the outer circumferential surface. And a stopper member disposed between the selection wheel and the print receiving portion, and a driving protrusion installed on an inner circumferential surface of the print endless band and engaging with the stopper member, wherein the print endless band is moved in accordance with the movement of the print endless band. And engaging the driving protrusion with the stopper member to cause relaxation of the endless band for printing, thereby idling the selection wheel. 12. The cam member according to claim 11, wherein a cam member is provided on the inner circumferential side of the printing endless band so as to be foldable on the inner circumferential surface of the printing endless band, the cam member having an adjustable rotational position. Printing machine. 13. The printing machine according to claim 12, wherein the cam member has an adjustment arm perpendicular to the cam adjustment rotation axis of the cam. 13. The printing machine according to claim 12, wherein the printing machine frame provided with the selection wheel and the printing receiving portion is provided with an adjusting groove for adjusting the rotational movement position of the cam member. 13. The printing machine according to claim 12, wherein the cam member is elliptical in cross section.